Demountable rim for vehicle-tires.



T. MID@ y DEMOUNTABLE RIM F0 CLE TIRES.

APPLICATION FILED IUNE I8 |91 3- 1,162,379 I Patented Nov. 30, 1915.

against any creeping movement longitudi- UNTTED sTATEs PATENT onnion.

THOMAS MIDGLEY, 0F DETROIT, MICHIGAN, ASSIGNOR T) MORGAN & WRIGHT, OF'

DETROIT, MICHIGAN, A CORPORATION 0F MICHIGAN. I

nnMoUNTABLE BIM Fon VEHICLE-TIRES.

To all whom z'may concern.'-

Be it known that I, THOMAS MIDGIEY, a citizen of the United States,residing at Detroit, in the county of Wayne, State of Michigan, haveinvented certain new and usefulA Improvements in Demountable Rims forVehicle-Tires; and 'I do hereby declare i the following to be a full,clear, and exactA description of the invention, such as will en- Theinvention contemplates'the provision of a continuous rim or band towhich the -resilient tire is fixed, said rim and tire being detachablyretained upon the .usual felly band by means of a series of rods orbolts disposed transversely between said tire rim and felly band andcarrying wedging members that not only lock the tire rim and its `tirein position against displacement transversely, but also lock said tirerim and tire nally of the felly band.

In the accompanying drawingz'Figurel is a transverse sectional view of avehlcle wheel showing a tire and my improved tirev corresponding partsin the several views.

Vthe spaces 7, each of said bolts before being the inclined orwedgingfaces 14 of the blocks 10 by their engagement with the in- Specificationof Letters Patent. Patgnted NOV, 30, 1915,

Application filed June 18, 1913. Serial No. 774,356.

shown, and being slightly angled or inclined at its edges 5 better toretain the tire against lateral displacement, and also to retain saidrim in position, as will be hereinafter more particularly described. jSaid tire rim 4 is provided on its inner surface witha series oflongitudinally disposed parallel ribs or 'iins 6, the same beinginterrupted at spaced intervals at 7 to permit the'pas'sage transverselythereof of bolts 8the spaces left by providing said interrupted portions7 being sufficient to receive said bolts freely between the band 2 andrim 4, Figs. 1 and 2.

In assembling the .parts the rim 4. carrying its tire 3 is slippedsidewise in position onto the felly rim 2, and the bolts 8, one vforeach space 7, and which are headed at one end at 9, are passedtransversely through as clearly shown in inserted having had slippedthereon one of the locking blocks 10, shown in detail in Fig. 4. Saidblocks are apertured at 11` to pass freely onto said bolts and assume aposition in contact with the head 9 thereof. A similar locking block 10is then slipped onto the' free threaded end 12 of each ofsaid bolts, anda'nut 13 secured to position thereon. The said locking blocks 10, whichare preferably 'of steel, are each formed with an outer wedging'face 14corresponding in angle with the angle of the edges 5 ofthe tire rim 4,and have a depending lug 15 provided on one face with one or more,preferably two,

spurs 16, the lug 15 extending far enough to cause said spurs toregister with the wooden felly 1, into which they are forced when thenut 13 is screwed to position. From this construction it will be seenthat 'clined inner faces of the edges 5 of the tire rim 4 will lock saidtire rim firmly in position against displacement, while the engagementof the spurs, 16 with the wooden felly effectually will prevent anycreeping longitudinally of the tire rim 4 and its tire 3 on the fellyband 2.

It will be understood that the longitudinal ribs or fins 6 on'the innerface ofthe tire rim 4 will afford the necessary firm support for the'tire rim 4 and its tire 3.

In Fig. 5 I have shown my Aimproved construction applied to a dual tireconstruction, the only additional element required being a series ofintermediate double faced wedging blocks 17, the same being interposedbetween the two parallel tire rims 4, there being one for each bolt 8,said intermediate blocksV being preferably of a length corresponding tothat of the blocks 10 and being recessed on y said nuts being disposedon the outside of the Wheel. 'And in the dual tire construction shown inFig. 5, inasmuch as the same rims 4 are used as are shown in Fig. 1,this .wider edge 5 of the innermost of the rims 4 is disposed to overliethe headed ends 9 of Y the bolts 8.

While I have shown a solid tire 3 mounted on the rinf 4, it will beunderstood that I do not confine myself to such construction, as myimproved locking mechanism is equally well adapted for use with a tireof any type, whether solid, cushion or pneumatic, the configuration Aofthe outer face of the tire rim'4 being capableof variation to suit anytype of tire.

Having. thus described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. The combination with a vehicle wheel y felly, of a tire rim and tireremovably in said recesses, a plurality of independent lockingblockscarried by said bolts having inclined Wedging faces engagingsimilar faces on said tire rim for retaining the latter in position, andmeans anchoring the blocks to the felly.

2. The combination with a vehicle wheel felly, of a tire rim and tireremovably mounted thereon, said tire rim being recessed transversely atintervals on its underside, bolts removably disposed transversely insaid recesses, and locking blocks carried by said bolts having inclinedwedging faces engaging similar faces on said tire rim for retaining thelatter in position, and having spurs engaging the felly to preventlongitudinal movement of said tire rim.

3. The combination with a vehicle wheel felly, of a tire rim and tireremovably mounted thereon, said tire rim having longitudinally disposedfins or. ribs on its inner side interrupted at spaced intervals toprovide transverse recesses,` bolts removably disposed transversely insaid recesses, and locking blocks carried by said bolts having inclinedwedging faces engaging similar faces on said tire rim for `retaining'the-latter in position, and having spurs engaging the felly to preventlongitudinal movement of said tire rim. f

In testimony whereof I havehereunto set my hand in the presence of twosubscribing wltnesses.

THOMAS MIDGLEY.

Witnesses:

JOHN CARLSON, E. LA BUSCHEWSKY.

